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/*=========================================================================
*
* Copyright UMC Utrecht and contributors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0.txt
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*=========================================================================*/
#ifndef elxRayCastInterpolator_hxx
#define elxRayCastInterpolator_hxx
#include "elxRayCastInterpolator.h"
namespace elastix
{
/*
* ***************** BeforeAll *****************
*/
template <class TElastix>
int
RayCastInterpolator<TElastix>::BeforeAll()
{
// Check if 2D-3D
if constexpr (TElastix::FixedDimension != 3)
{
itkExceptionMacro("The RayCastInterpolator expects the fixed image to be 3D.");
return 1;
}
if constexpr (TElastix::MovingDimension != 3)
{
itkExceptionMacro("The RayCastInterpolator expects the moving image to be 3D.");
return 1;
}
return 0;
} // end BeforeAll()
/*
* ***************** BeforeRegistration *****************
*/
template <class TElastix>
void
RayCastInterpolator<TElastix>::BeforeRegistration()
{
this->m_CombinationTransform = CombinationTransformType::New();
this->m_CombinationTransform->SetUseComposition(true);
unsigned int numberofparameters = this->m_Elastix->GetElxTransformBase()->GetAsITKBaseType()->GetNumberOfParameters();
TransformParametersType preParameters(numberofparameters, 0.0);
for (unsigned int i = 0; i < numberofparameters; ++i)
{
bool ret =
this->GetConfiguration()->ReadParameter(preParameters[i], "PreParameters", this->GetComponentLabel(), i, 0);
if (!ret)
{
std::cerr << " Error, not enough PreParameters are given" << std::endl;
}
}
this->m_PreTransform = EulerTransformType::New();
this->m_PreTransform->SetParameters(preParameters);
this->m_CombinationTransform->SetInitialTransform(this->m_PreTransform);
this->m_CombinationTransform->SetCurrentTransform(this->m_Elastix->GetElxTransformBase()->GetAsITKBaseType());
this->SetTransform(this->m_CombinationTransform);
PointType focalPoint;
focalPoint.Fill(0.);
for (unsigned int i = 0; i < TElastix::FixedDimension; ++i)
{
bool ret = this->GetConfiguration()->ReadParameter(focalPoint[i], "FocalPoint", this->GetComponentLabel(), i, 0);
if (!ret)
{
std::cerr << "Error, FocalPoint not assigned" << std::endl;
}
}
this->SetFocalPoint(focalPoint);
} // end BeforeRegistration()
/*
* ***************** BeforeEachResolution *****************
*/
template <class TElastix>
void
RayCastInterpolator<TElastix>::BeforeEachResolution()
{
unsigned int level = (this->m_Registration->GetAsITKBaseType())->GetCurrentLevel();
double threshold = 0.;
this->GetConfiguration()->ReadParameter(threshold, "Threshold", this->GetComponentLabel(), level, 0);
this->SetThreshold(threshold);
} // end BeforeEachResolution()
} // end namespace elastix
#endif // end #ifndef elxRayCastInterpolator_hxx
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